Fairbanks, Alaska GVEA Rates as of 09/01/2011:
Each meter: $17.50/month
Utility charge: $0.08791/kWh/month
Fuel charge: $0.10924/kWh/month
What is the cost if you left a 96W light bulb on all the time?
First, calculate the kWh for the month, lets say 30 days on average.
30 days X 24 hours = 720 hours/month
720 hours X 96 Watts = 69120 Watt hours (Wh)
1000 W in 1 kW ==> 69.120 kWh of power used per month
Now multiply 69.12 kWh against the rates to get the cost of running 96W all day for a 30 day month:
For simplicity, we add all the rates up: $0.20207/kWh
69.12 kWh X $0.20207/kWh = $13.97 per month in power & regulatory fees.
With the meter charge, your nearly 100W light bulb is costing you $31.47 per month (or $377.64 per year). That is some expensive light bulb! No wonder they give out light bulbs for free at the annual meeting.
What things do you leave on all day?